Microwave shows E10; oven light and fan may work but heating and some functions are disabled.

Critical safety warning: Inverter-based microwaves operate at very high voltages and frequencies. Only qualified technicians should service the inverter or magnetron.

• Basic checks: Unplug the Amica microwave. Inspect for obvious burn marks or a burnt smell near the inverter board (usually a separate PCB near the magnetron).
• Ventilation: Ensure vents are not blocked, as overheating can trigger inverter faults.
• Do not attempt live testing: Never power the microwave with covers removed to probe the inverter; this is extremely dangerous.
• Professional diagnosis: E10 typically requires replacement of the inverter module and sometimes the magnetron. Contact an authorized Amica service center for proper diagnosis and repair.